21784268

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{13381}}^1$

素因数の和:13433

約数の個数: 24

約数和(自身を含む): 42715344

約数和(自身を除く): 20931076

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 13381, 26762, 53524, 147191, 294382, 495097, 588764, 990194, 1980388, 5446067, 10892134, 21784268]

約数ペア:

[(1, 21784268), (2, 10892134), (4, 5446067), (11, 1980388), (22, 990194), (37, 588764), (44, 495097), (74, 294382), (148, 147191), (407, 53524), (814, 26762), (1628, 13381)]